C22212323232133313113313331333132313231333132313222133223331213311   >>    C2221232323213331311331333133313231323133313231322213322333121331   <<    C22212323232133313113313331333132313231333132313222133223331213313   >>      C22212323232133313113313331333132313231333132313222133223331213312   >>